.page {
  .poster {
    width: 100vw;
  }
  .btn {
    position: fixed;
    bottom: 30rpx;
    left: 50%;
    transform: translateX(-50%);
    padding: 0 40rpx;
    background: #ff4d4f;
    color: #fff;
    border-radius: 50rpx;
    height: 100rpx;
    line-height: 100rpx;
  }
}